Effect of grain size distribution on stress-strain-dilatancy behavior of granular soil

This study aims to explore the effect of particle size distribution on the stress-strain-dilatancy behavior of granular soils, as well as the evolution of void ratio from the initial state to the critical state. The dataset comprises triaxial test results from: (1) uniformly distributed sand specimens with seven different particle sizes, and (2) binary sand mixtures with four distinct size ratios. For each size ratio of the binary mixtures, the fines content varies as follows: 0%, 10%, 20%, 30%, 50%, 70%, 100%. The confining pressure applied in the triaxial tests ranges from 100 kPa to 400 kPa. This dataset stands out due to its inclusion of a wider range of variables, such as particle size, particle size ratio, and fines content, compared to existing data. It is particularly valuable to researchers working on the development of soil constitutive models.